Tjernlund HS-3 User Manual

TJERNLUND PRODUCTS, INC.

1601 Ninth Street • White Bear Lake, MN 55110-6794
PHONE [phone] • [phone] • FAX [phone]
Visit our web site • www.tjernlund.com

FOR NATURAL GAS OR LP

REV. A 9/99

MODELS

HS-3
HS-4
HS-5

OWNER INSTRUCTIONS, DO NOT DESTROY

!

Recognize this symbol as an indication of important Safety Information!

NOTE: FLUE GAS TEMPERATURES MUST NOT EXCEED
600oF AT VENT SYSTEM INLET.

THESE INSTRUCTIONS ARE INTENDED AS AN AID TO QUALIFIED, LICENSED
SERVICE PERSONNEL FOR PROPER INSTALLATION, ADJUSTMENT AND
OPERATION OF THIS UNIT. READ THESE INSTRUCTIONS THOROUGHLY
BEFORE ATTEMPTING INSTALLATION OR OPERATION. FAILURE TO FOLLOW
THESE INSTRUCTIONS MAY RESULT IN IMPROPER INSTALLATION, ADJUST­MENT, SERVICE OR MAINTENANCE POSSIBLY RESULTING IN FIRE, ELECTRI ­CAL SHOCK, CARBON MONOXIDE POISONING, EXPLOSION, PERSONAL
INJURY OR PROPERTY DAMAGE.

DO NOT DESTROY. PLEASE READ CAREFULLY AND KEEP

IN A SAFE PLACE ON JOB SITE FOR FUTURE REFERENCE.

Copyright © 1997, Tjernlund Products, Inc. All rights reserved. P/N 8504031

TABLE OF CONTENTS

PAGE(S)

HS-3,4,5 DESCRIPTION ............................................................................................................................................ 1

SPECIFICATIONS ......................................................................................................................................................... 1

HS-3,4,5 SIZING & SELECTION ................................................................................................................................ 1-2

RESTRICTIONS.......................................................................................................................................................... 2-3

INSTALLER CAUTIONS ............................................................................................................................................... 3

VENT HOOD LOCATION ............................................................................................................................................. 3

POWER VENTER MOUNTING .................................................................................................................................... 4

VENT PIPE INSTALLATION ..........................................................................................................................................4

FAN PROVING SWITCH INSTALLATION .................................................................................................................... 5

WIRING .......................................................................................................................................................................5-9

SPECIFICATIONS ........................................................................................................................................... 5

WIRING WITH SINGLE APPLIANCE........................................................................................................... 6-7

WIRING WITH MULTIPLE APPLIANCES & MAC-3 CONTROLLER .......................................................... 8-9

OPERATION SEQUENCE ............................................................................................................................ 10

DRAFT ADJUSTMENT ............................................................................................................................................... 10

SAFETY INTERLOCK ..................................................................................................................................................10

MAINTENANCE .......................................................................................................................................................... 10

HOW TO OBTAIN SERVICE & LIMITED WARRANTY ..........................................................................................10-11

REPLACEMENT PARTS ............................................................................................................................................. 11

Tjernlund Products welcomes your comments and questions. Call us at 800-255-4208, Fax [phone] or write to:
Customer Service, Tjernlund Products, Inc., 1601 Ninth Street, White Bear Lake, MN 55110-6794.

DESCRIPTION

The Tjernlund Power Venter models HS-3, HS-4 and HS-5 are designed to Side Wall or Vertically vent Natural and LP Gas
appliances. All models are supplied with a Fan Proving Switch which will disable the gas valve if a venting malfunction should occur.

SPECIFICATIONS

SIZING

The installer must verify that the Power Venter is sized properly using the selection table on page 2. The installer may reduce the
vent pipe diameter to the size shown in the selection table immediately after the draft hood, draft diverter or barometric draft control.
The vent pipe length shown includes all vent pipe before and after the Power Venter. To calculate the equivalent vent pipe length,
add the straight vent pipe plus 10 feet for every 90 degree elbow and 5 feet for every 45 degree elbow.

If venting multiple appliances with one Power Venter, the total combined BTU/hr. input of all appliances must be added together to
size the Power Venter.

IMPORTANT: Elbows placed directly after discharge on Power Venter may cause erratic operation of Fan Prover. If elbows are

necessary on discharge, allow for a straight section of pipe 3 times the vent diameter being used before installing an elbow.

1

MODEL

SELECTION

TABLE

INSTALLATION RESTRICTIONS

Failure to install, maintain and/or operate the Power Venter in accordance with manufacturer's instructions may result in conditions

which can produce bodily injury and property damage.

The Power Venter must be installed by a qualified installer in accordance with these instructions and all local codes or in their

absence in accordance with the latest edition of The National Fuel Gas Code (NFPA #54), The latest edition of the National Electrical

Code (NFPA#70) and the Occupational Safety and Health Act (OSHA) when applicable. Improper installation can create a hazardous

condition such as an explosion, fire, electrical shock or carbon monoxide poisoning resulting in property damage, personal injury or

death.

Disconnect the power supply when making wiring connections or when working around the fan wheel and motor. Failure to do so can

result in electrical shock, personal injury, death or property damage.

1. The Power Venter may only be installed on Natural Gas or LP Gas appliances.

2. The Power Venter may not be installed on incinerators, incinerating toilets, condensing-type appliances or solid-fuel burning
appliances.

3. The Power Venter shall not be installed on an appliance with an automatic valve having a manual opener unless the manual
opener has been rendered inoperative or the automatic valve has been replaced with a valve not equipped with a manual opener.

4. The Power Venter may only be installed on appliance equipped with a draft hood, draft diverter or barometric draft control.

2

5. The Power Venter shall not be installed where the flue gas temperature exceeds 600oF. at the Power Venter inlet. Flue gas
temperature verification:

A) Consult appliance manufacturer for flue gas temperature after dilution by the draft hood, draft diverter or barometric draft control.
B) Measure flue gas temperature at the Power Venter inlet after installation. Temperature should be measured after appliance and

Power Venter have operated for at least 15 minutes, allowing the flue gas temperature to stabilize.

6. The Power Venter must be mounted so that the shaft of the motor remains horizontal to prevent motor bearing wear.

7. Power Venter electrical box must be mounted with the Fan Proving Switch in a vertical position.

8. Ambient temperature surrounding Power Venter must not exceed 104o F.

4

F444444

444444444444444 CAUTIONS

INSTALLER CAUTIONS

1. Plan the vent system so that the code required clearances are maintained from plumbing and wiring.

2. To prevent personal injury and equipment damage, disconnect power supply when working on Power Venter.

3. Make certain the power supply is adequate for Power Venter motor requirements. Do not add the Power Venter to a circuit where
the total load is unknown.

4. The installer must verify that the appliance on which the Power Venter will be installed is in a safe operating condition. Consult
appliance manufacturer’s Instructions for details.

5. Plan the vent system layout so that the Power Venter is as close to the point of termination as possible. Vent pipe between the
Power Venter and Vent Hood is acceptable. However, all vent pipe connections after the Power Venter discharge will be under pos­itive pressure during operation and must be sealed with high-temperature caulk or aluminum vent pipe tape to prevent flue gas leak­age into the structure.

VENT HOOD LOCATION

This section only applies if using a Power Venter to Sidewall vent. If using Power Venter to exhaust the flue gases vertically, skip to
the section titled “POWER VENTER MOUNTING” on page 4.

If possible, locate the Vent Hood on a wall that does not face the direction of prevailing winds. This will diminish the possibility of
appliance interruption during periods of extreme winds.

If possible, locate the Vent Hood no closer than 3 feet from an inside corner of an L-shaped structure.

CODE REQUIREMENTS

Terminate the vent system so that proper minimum clearances are maintained as cited in the latest edition of the National Fuel Gas
Code (NFPA # 54) and the latest edition of Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances, (NFPA #211), or as follows:

• Not be less than 7 feet above grade when located adjacent to public walk ways.

• At least 3 feet above any forced air inlet located within 10 feet.

• At least 4 feet below, 4 feet horizontally from or 1 foot above any door, window or gravity air inlet into any building.

• At least 1 foot above grade.

• So that the flue gases are not directed so as to jeopardize people, overheat combustible structures or enter buildings, and

• Not less than 2 feet from an adjacent building.